Denis Kataev, founder of ForCar
Founder & Editor · Serial Solopreneur

Denis Kataev

Denis Kataev is a serial solopreneur and the founder of ForCar. With 15+ years in software engineering and 10 years in SEO, he builds data-driven products end to end — backed by a sharp eye for design. At ForCar he mines proprietary vehicle datasets, turning raw numbers into buying advice you can actually trust.

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Guides by Denis

341 articles
Diesel and gasoline heavy-duty pickup asking prices compared
Comparisons

The Diesel F-350 Asks $25,126 More Than the Gas One

Compare diesel to gasoline across a whole market and you mostly measure the trucks. So we narrowed it to the same nameplate, same body, same job — and the gap not only held, it widened.

Sep 4, 2026 · 4 min
Annual mileage by state calculated from odometer readings and vehicle age
VIN & History

100,000 Miles Takes 7 Years in Louisiana and 12 in Hawaii

Odometer readings get judged against a single national rule of thumb, usually 12,000 miles a year. Split the same data by state and that rule turns out to be wrong in both directions, by enough to change what a number means.

Sep 4, 2026 · 4 min
Average used car prices by state against the share of pickups on the market
Depreciation & Value

A Used Car Averages $27,361 in Montana and $10,633 in DC

State price averages get quoted as if they measure how expensive a state is. They don't. They measure what happens to be parked on the lots, and we can now show exactly how much of the gap that accounts for.

Sep 4, 2026 · 4 min
Coverage of complaints, recalls, fuel economy and crash tests across car models
VIN & History

We Hold Complaint Data on 2,604 Models. Crash Tests on 311.

A specification page looks complete because the blanks are quietly dropped. We went the other way and counted the blanks: which facts exist for how many models, and which model years are simply dark.

Sep 4, 2026 · 4 min
Average vehicle age when owner complaints are filed, by decade
Reliability

Cars Were 3.5 Years Old When Owners Complained. Now It's 6.4.

The regulator's complaint database is usually read as a reliability record. Read it by the age of the car instead and it turns into a record of who owns cars, for how long, and when they decide something is worth reporting.

Sep 3, 2026 · 4 min
Rarest and most common car badges on the American used market
Buying Guides

There Are 20 McLarens for Sale in America. There Are 71,161 Fords.

A used market is supposed to be a mirror of what people bought. Sort 413,888 listings by badge and the mirror turns out to have some very thin spots — and a spelling problem nobody talks about.

Sep 3, 2026 · 3 min
Delay between incident and complaint filing by vehicle component
Reliability

Owners Report Steering Faults in 118 Days. Wiring Takes 165.

Every complaint carries two dates: when it happened and when somebody told the regulator. The gap between them varies by what broke — and it varies in exactly the wrong direction.

Sep 3, 2026 · 4 min
Share of window sticker lookups that return the original factory label, by brand
VIN & History

People Asked for a Ford Window Sticker 970 Times. It Exists Zero Times.

The original Monroney label is the one document that proves how a car left the factory. Whether you can get it has nothing to do with the car and everything to do with the badge on it.

Sep 3, 2026 · 3 min
Used car listings advertised as new against their real odometer readings
Buying Guides

502 Used Cars Are Genuinely New. Another 664 Just Say So.

Craigslist lets the seller choose the condition from a dropdown. Nobody checks it against the odometer. We did, across every listing we hold, and the word "new" turns out to mean almost nothing.

Sep 3, 2026 · 3 min
Used price against owner complaint volume by model year
Reliability

A Prius With 2,819 Complaints Sells Above Its Class. A Mirage With Five Sells Far Below It.

Owner complaints move used prices in the direction you'd expect, until you reach the cars people have already made up their minds about.

Sep 2, 2026 · 2 min
Four-wheel drive price premium within the same model and year
Depreciation & Value

We Said Four-Wheel Drive Costs 61% More. Compared Properly, It's 6%.

Our earlier figure compared pickups with saloons and called it a drivetrain premium. Here is the same question answered on the same car with one axle different.

Sep 2, 2026 · 2 min
Used price premium for five-star NHTSA safety rating
Depreciation & Value

The Market Pays 15% for the Fifth Safety Star. Three Quarters of Cars Already Have It.

Used listings with a five-star rating sell for a quarter more than four-star ones. Control for what's actually being compared and the premium halves — but it doesn't disappear.

Sep 1, 2026 · 2 min